Revealing 6 common errors & how to fix CNC machine errors

For the most part, CNC machines are durable, and they are commonly known as long-life devices that you can count on. However, despite their reliability, substandard CNC machining services, programming difficulties and some other parts in a CNC machine can often lead to minor but annoying problems over time. time. Accompanying that is the lack of knowledge on how to fix CNC machine errors. In fact, most common CNC machining problems are caused by user error or inadequate maintenance.

6 most common errors & how to fix CNC machine errors

Programming error

As part of a very complex piece of equipment managed by a CNC computer, many problems that arise during CNC machining often come from programming errors.

It can happen due to lack of knowledge about the different G and M codes used to control it, incorrect setup or even incorrect data entry in the CNC controller.

However, to resolve these types of errors, novice users need to be fully trained in the different ways that CNC machines are programmed.

Instructions for use, practice, sequence of movements and machine operating instructions should always be provided by machine suppliers and skilled operators.

Using the incorrect cutting tools

Choosing the wrong cutting tool for a particular job can result in unsuitable material finishes. This can be sharp edges, external tool marks, bumps or even burn marks on the surface or edges of the material.

In all cases, unsatisfactory material can be caused by dullness of the tool used or the wrong feedrate. It can also be due to the wrong ratio of the tool used for the material and dimensional specification work. So, the way to fix this CNC machine error is to always remember to make the right choice when choosing a cutting tool for a particular job and material.

Today’s advanced CNC machines have many constantly moving mechanical parts that must be washed and serviced regularly to keep them functioning correctly. Therefore, not cleaning them adequately can lead to accumulation of dirt, and eventually, over time, can lead to machining mistakes or even machine failure.

To prevent this from happening, everyone operating the machine must follow a comprehensive maintenance system for the machine tools used. You should also regularly check the coolant level and air flow in the machine to ensure continuous and perfect operation.

Power supply problem

Occasionally, the display of the CNC machine or any other part may not work due to power failure.

The first way to fix this CNC machine error is to make sure that the right voltage and power is used to supply the power. Then you need to check if the output is working correctly. If the voltage measurement is low or no power, you can try unplugging the wire while the power is off, then turn the power back on and double check the output.

Another good idea is to see if the LEDs on the machine are working and check the fuses and see if any are blown. A reliable and stable power supply is essential. This is also the basis for trouble-free operation of each CNC machine.

However, keep in mind that if you have problems with your power supply, you should let a professional check it out for you.

The machine is overheated

Thermal overload of the machine spindle can sometimes occur, and the CNC machine can reach more than 150 degrees from the inside.

This can negatively impact the overall operation of the CNC machine. The way to fix CNC machine errors in this case is to make sure to regularly clean all parts of the machine. In addition, you should avoid operating the machine for long periods at high rpm as this only contributes to overheating.

If your CNC machine shakes while doing its job, it can significantly reduce the life of your tool, affect the durability of your CNC machine or even impair the quality of operation. of the machine. You can notice this by just listening to the noise the machine makes, which can sometimes be very loud.

To get started with this CNC error correction, you will need to determine if the shaking is caused by the workpiece or by the machine tool. You can then make rpm adjustments during the machining process so that the frequency of the process itself cannot resonate with the frequency of the material used.

As an additional note, when using your machine hub spindle at speeds higher than 8000 rpm, it is important to use a level tool holder.

There are many problems faced when using CNC machinery. However, our task is to develop the right strategies to overcome these challenges without compromising on performance. However, we all know that prevention is better than cure. Therefore, some precautions must be taken to avoid damage during machining.